US349500A - Brick-machine - Google Patents

Description

(No Model.) 3 Sheets-Sheet 1.

w. HILTON.

BRICK MACHINE. No. 349,600. v Patented Sept. 21, 1886.

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N PETERS, Phuwulho m her. Walhinglnm n. c.

(No Model.) a Sheets-Sheet 2.

W. HILTON.

BRICK MACHINE.

No. 349.500. Patented Sept. 21, 1886.

Ni PETERS. Phcmmho n hw. Washington. D. c.

3 Sheets-Sheet 3.

(No Model.)

W. HILTON.

BRICK MACHINE.

No; 349,500. Patented Sept. 21, 1886.

FIIIII'IIIIIIIIIII/ WITNESSES N. VETERS. Fhcb-Lilhqgl'aaher, Wnhinglan. [LC- Y UNITED STATES PATENT OFFICE.

YVILLIAM HILTON, OF DUNKIRK, NEW YORK.

BRICK-MACHINE.

SPECIFICATION forming part of Letters Patent No. 349,500, dated September 21, 1886.

Application filed February 4, 1886. Serial No. 190,762. (No model.)

To all whom it may concern.-

Be it known that I, WILLIAM HILTON, a citizen of the United States, residing at Dunkirk, in the county of Chautauqua and State of New York, have invented certain new and useful Improvements in, Brick Machines, of which. the following is a specification, reference being had therein to the accompanying drawings.

My invention relates to improvements in brick-machines, and more particularly to that class of machines in which the clay is tempered or pugged and forced into molds of suitable shape.

The object of my invention is to provide a machine comparatively inexpensive and at the same time reliable and effective in operation.

Referring to the drawings, Figure 1 is a front elevation of my machine. Fig. 2 is a sectional end view of the pressing-plunger, press-box, clod-cutter, and mold-box, and a portion of the temperingchamber. Fig. 3 is a top or plan view of the frame for pushing the moldboxes forward. Fig. 4 is a perspective view of the devices shown in Fig. 3. Fig. 5 is an enlarged View of a portion of the pressingframe, as will more fully appear. Fig. 6 is a front view of a modified form of the hooks. Fig. 7 is a side View of the lower portion of the machine.

A indicates the grinding-tub or temperingchamber, made of boiler-iron or other suitable material, and by preference about forty-two inches high and forty inches in diameter, but may be of any size desired. The temperingchamber A is supported on the cast-iron frame 1, one at each side, said frames being cast in one piece and secured to the wooden frame 0 in any substantial manner.

2 is a metalplate which forms the bottom of the tempering-chamber, and is securely bolted to the upper side of the frame 1.

B are posts made of angle-iron, the lower ends of which are secured to the frames 1, while their upper ends are secured to stringers O, or other suitable supports which will hold the machine rigidly in position, it being understood that four of these posts are used-one at each corner of the machine.

The tempering-chamber is provided with a central wrought-iron shaft, D, which is providedwith the usual cast-steel knives or blades for tempering the clay, and a large forcingblade near the lower end for pressing the clay through an opening in the side of the tempering chamber into the pressbox. The knives are not shown in the drawings, but may be of the kind ordinarily used in this class of machines.

E is a large bevel-wheel secured to the upper end of the shaft D, which meshes with the small bevel-gear pinion F, said gear-wheel. F being mounted on a shaft secured in proper bearings in the stringers or supports O,which in turn is driven by the spur-wheel G on the main driving-shaft H. The shaft H is provided with suitable band-wheels, I, by which power is applied to drive the machine from any suitable source. The shaft D is also provided with another mitered gearwheel, K, which meshes with a similar wheel, K, (shown in dotted lines in Fig. 1,) on the shaft L, the function of which will be described in connection with the pressing frame or plunger.

M is a rectangular frame adapted to slide in the guides N, the lower end of which is adapted to work snugly in the press-box O to force the clay down into the molds P, which are located underneath the same, the lower end of therectangular frame M acting in the capacity of a compression-plunger to force the clay into all parts of the mold.

R is a triangular frame detachably secured to the adjustable bar S of the rectangular frame M by means of spring-hooks T, said triangular frame being designed to work up and down with the rectangular frame M. The triangular frame R is adjusted with relation to the frame M by means of a pin inserted in one of the holes a, which enters under the lower end of the bar S. This regulates the distance the press-frame is to enter the press-box to force of the slot U, and thus prevent the same from wearing away too fast and to reduce the friction.

As before indicated,T are spring-hooks or safety-catches pivoted in the frame R at b,

said hooks being adapted tothook over the up-' modification in which the hooks T are held in contact with the upper end of the bar S, by means of the strap-springs A,which impinge on the hooks, said springs being secured at their lower ends, as shown, and provided with set-screws a, working in the band or hook b, and by which means the tension of the springs is regulated. In this instance two spring hooks are employed on each side, which are connected at their upper ends by the boltsc, against which the tops of the springs Aimpinge to hold said catches in position on top of the bar S. The object of this flexible connection is to guard against breakage of the machine when WOIking very stiff clay, or when working, stony clay. If a stone should get fast under the plunger-frame M, the latches T will open by the undue strain and let the bar S pass up and permit the frame R to descend and allow the crank-arm V to complete its revolution without doing violence to or breaking the machine. WVhen the crank-arm Vmalges its upward movement, itcarries with it the frame R, and when raised to its highest point the latches T will close over the end of the bar S and be ready to force the plunger down into the press-box again to fill the molds with clay. The tension of the spring-actuated arms in Fig. 5 is regulated by turning the heads 0 of the boltsd to the right or left, as occassion may require.

13 is the front plate or door of the press-box O, the upper edge of which is pivoted in the standards D, so that the door can be swung,

on said pivots by means of the hand-lever E and allow the operator to have access to the interior of the pressbox to remove stones or other obstructions which may have found their way into the same, the pivoted bars F being turned down in front of the door to hold the same in a closed position when the machine is in use.

G is the clod-cutter or grating through which the clay is forced into the mold-box by the plunger M, said grating being hung on pivots at each end of the press-box 0, so that it will adjust itself to and fit snugly on the top of the mold-box and prevent the clay from working out between the grating'and the top of the mold-box. The clod-cutter or grating G is made with the end openings larger than the ones next to them, and these intermediate openings are made larger than the center one, in order that the clay will be forced equally into all the mold-cavities, and the brick made of uniform density.

As before referred to, H is an opening in the side of the mixing-tub six inches high, through which the clay is forced by the pugging or mixing shaft into the press-box O. The plunger has a movement of about ten inches, and therefore passes down fourinches below the opening B, a side piece, I, being secured to the p1unger,which closes theopening H when the plunger is at its lowest point and prevents the escape of the clay from the mixing-tub. The bottom of the mixingchamber, as well as the top of the grating or clod-erusher, is made tapering,so as to form a tapering cavity, 6, which decreases in size as the plunger descends, the projection or knifeedge f on the plunger serving to cut off and confine the proper amount of clay under the plunger to fill the molds.

'L is a frame pivoted at 3 t0 the frame 1, and located under the mixing or' puggingcha-mher and the press-box on which the moldboxes are supported, said frame being adapted to be raised and lowered by the cams M, mounted on the shaft N, said shaft N being mounted 011 the adjustable bracketsd and operated by the lever O. The object of this adjustment is to enable the operator to quickly raise and lower the frame in cases where the mold-boxes have become obstructed. The front end of the frame L is provided with two or more rollers, P, mounted parallel with the I sides thereof, onto which the filled molds are pushed, and by which means the off-bearers are enabled to bump the molds against the projections 5 to loosen the clay in the molds, so the newly-formed brick will readily slip therefrom.

' R are rollers mounted transversely to the rollers Pin the frame Lunder the pressbox, on which the molds are supported, as shown in Fig. 2, and by which means the molds are more readily pushed from under the pressbox O and grating G by the automatic devices which will now be described.

S is a rectangular frame mounted on suitable rollers, so that it can be readily pushed back and forth on the frame 1 by means of a cranlgand pitman secured to the lower end of the shaft D. The frame S is provided with a cross-bar, T, said cross-bar being made adj ustable by means of the screw-rods V. which pass through the ends of the cross-bar T. The cross-bar T is arranged to impinge against the mold-boxes and push them forward as the frame S is driven in that direction, so that the box which has just been filled with clay will be pushed forward from under the clay-box and an empty box will be placed under said clay-box, ready to be filled.

The object of making the cross-bar T adj ustable is to accommodate it to molds of different size and to regulate the distance the mold-boxes are to be pushed out from the claybox.

To prevent the breaking of the mold-boxes while being pushed out by the frame S from under the press-box, in case there are any obstructions-such as large stones or the clogging of the mold-boxes when partly inserted- I provide a detachable coupling between the frame S and the shaft D, which will become detached when undue strain is exerted. This IIO detachable coupling consists of the following parts: V is a sliding bar mounted in suitable guides, g, in the frame S, said bar being connected to a crank-arm on the bottom of the shaft D below the mixing-tub, as has already been described. The sliding bar is held back by the springactuated latch h, said latch being secured to the rod or shaft 2', which in turn is connected tothe springbar k by means of the bent lever Z and adjustable bolt on, said bolt-serving to adjust the tension of the spring, and in this manner increase or decrease the power of resistance of the catch or latch h. It will be noticed that if by any accident the mold-boxes should become clogged, so that the cross-bar T cannot move them without breaking or injuring them, the latch Zr will yield to the pressure of the sliding bar V and permit it to pass over the same any number of times, or until the obstruction is removed, and when this is done the frame S will be carried forward and the molds moved without breaking or injuring the machine. The empty mold-boxes are inserted through the opening 7 in the side of the frames 1, so as to be placed in the path of the crossbar T, which forces them forward under the press-box and pushes the newly-filled moldboxes out from under the press-box onto the front end of the frame L. The press-box O is lined with any suitable material,and is held in place and adjusted by means of the screwbolts 8.

Having thus described my inventi0n,whatI claim, and desire to secure by Letters Patent,

1. In a brick-machine of the character described, the clay forcing or pressing plunger of which is detachably secured to the operating-fran1e, as described, whereby said clayforcing plunger is relievedfrom' undue strain, as described.

2. In a brick-machine of the character described, the frame R, provided with the springactuated catches T, and operated by the shaft L, as described, in combination with the plunger or pressing frame M, having the adjustable bar S, adapted to engage with the catches T, as set forth.

3. In a brickmachine of the character described, the catches T, adapted to engage with the top of the bar S, in, combination with the spring-actuated levers A, or their described equivalents, and devices, substantially as described, for regulating the amount of pressure to be exerted on the catches, as set forth.

4. In a brick-machine of the character described, the frame S, provided with the adj ustable cross-bar T, whereby the same is adapted to move mold-boxes of different sizes, as set forth.

5. In a brick-machine of the character de scribed, the movable frame S, provided with the spring-catch h and operatingbar V, as described, whereby said bar is permitted to slide over the catch when undue pressure is exerted, as set forth.

6. In a brick-machine of the character described, the mold-pushing frame S, provided with an adjustable cross-bar, T, and the adjustable spring-actuated catch 71, in combination with the bar V and devices, substantially as described, for operating the bar and frame, as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

WILLIAM HILTON.

Vi tnesses:

WM. MARTIN, J. W. PERKINS.

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